Lessons Learned, Headquarters, 169th Engineer Battalion Open PDF Document Details Document Type Technical Report Publication Date Nov 10, 1968 Accession Number AD0849006 Entities Organizations Adjutant General's Corps Tags Communities of Interest Biomedical Energy and Power Technologies Weapons Technologies DTIC Thesaurus Topics Abstracts Aircrafts Army Combat Support Concrete Construction Directives Drilling Employment Engineers Lessons Learned Personnel Management Revetments Security Standards Training United States